FOLD(1) BSD Reference Manual FOLD(1)
fold - fold long lines for finite width output device
fold [-bs] [-w width] [file ...]
fold is a filter which folds the contents of the specified files, or the standard input if no files are specified, breaking the lines to have a maximum of 80 characters. The options are as follows: -b Count width in bytes rather than column positions. -s Fold line after the last blank character within the first width column positions (or bytes). -w width Specifies a line width to use instead of the default 80 charac- ters. The fold utility exits 0 on success or >0 if an error occurred.
The fold utility conforms to IEEE Std 1003.2-1992 ("POSIX.2").
If underlining is present it may be messed up by folding. width should be a multiple of 8 if tabs are present, or the tabs should be expanded using expand(1) before using fold. MirOS BSD #10-current June 6, 1993 1
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